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chengxu9.rar
- 有关扩频通信系统的MATLAB程序----直接序列扩频系统,PN序列的产生。,On the spread spectrum communication system in MATLAB procedures---- Direct Sequence Spread Spectrum Systems, PN sequence generation.
QPSK.rar
- 使用matlab程序实现了由随机序列到码元电平、m序列直接扩频解扩、qpsk调制解调,射频调制解调一个完整的qpsk系统过程,Matlab program to use by the random sequence to the symbol level, m direct sequence spread spectrum despreading, qpsk modulation and demodulation, RF modulation and demodulation of the QP
DSSS.rar
- 一个四用户的扩频通信系统,扩频增益为N=16,采用Walsh码进行直接序列扩频,BPSK调制,无线信道为AWGN(加性高斯白噪声信道)信道(AWGN信道:不考虑通信信道信号时,由宽频范围描述的统计随机无线噪声。)。在接收端进行解扩,解调,判决,通过仿真得到其中一个用户的误比特率与信噪比的仿真结果。,A four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct
genzong 提供直扩系统的跟踪环路的matlab程序
- 提供直扩系统的跟踪环路的matlab程序,并对其误差进行分析-Direct expansion system to provide tracking loop matlab program, and its error analysis
kuopin
- 扩频系统,首先随机产生01序列,然后通过扩频,脉冲成型,BPSK调制发送,接收端接收进行解扩解调-The wide frequency system, first stochastically has 01 sequences, then through the wide frequency, the pulse formation, the BPSK modulation transmission, the receiving end receive carries on the despre
DSSS
- 设计一个有干扰的直接序列扩频通信系统, PN码由m序列产生器产生,经过高斯白噪声信道。在接收端接收到的信号包括“有用信号+高斯白噪声+干扰”,将接收信号进行解扩,判决,得到用户的信号检测结果,绘制不同的扩频增益(增益值为10,30,50)下,误比特率随信噪比Eb/N0的变化曲线。-Design of a direct sequence spread spectrum interference system, PN code generated by the m sequence generato
matlabkuo
- 扩频通信系统仿真,包括调制解调,解扩全部过程的一个完整通信系统-matlab dss
dsss-mdl
- 实现扩频通信,包括了PN码同步,扩频调制解扩-Realize spread spectrum communication, including the PN code synchronization, spread spectrum modulation solution extender
research_synchronization_in_DSSS
- 在matlab仿真环境下,对直扩通信系统的同步算法及其流程进行说明-Matlab simulation in the environment, on the DS communication system synchronization algorithm and its process descr iption
cdma-matlab
- 用matlab程序模拟实现cdma系统的整个过程。包括并串、串并转换,m序列的产生,直接扩频、解扩,qpsk的调制解调,载波调制解调等。-Matlab simulation procedures used to achieve the whole process of cdma systems. Including and string SERDES, m sequence generation, direct spread spectrum, despreading, qpsk the mod
matlab_ydtx
- 一个四用户的扩频通信系统,扩频增益为N=16,采用Walsh码进行直接序列扩频,BPSK调制,无线信道为AWGN信道。在接收端进行解扩,解调,判决,通过仿真得到其中一个用户的误比特率与信噪比的仿真结果。-A four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct Sequence Spread Spectrum, BPSK modulation, AWGN
YYY_DSSS
- 设计一个四用户的扩频通信系统,扩频增益为N=16,采用Walsh码进行直接序列扩频,BPSK调制,无线信道为AWGN信道。在接收端进行解扩,解调,判决,通过仿真得到其中一个用户的误比特率与信噪比的仿真结果。-Designed a four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct Sequence Spread Spectrum, BPSK modul
CDMA-2USER
- 二用户CDMA系统,信道为加性高斯信道,使用BPSK调制,15位M序列扩频,可以正确解扩解调。 输出为2用户的基带信号、扩频信号、PSK调制信号、解调信号的时域和频域特性,给出两个用户分别的误码率。 -Second, the user CDMA system, channel for the additive Gaussian channel, using BPSK modulation, 15 M Sequence Spread Spectrum, you can correct demo
kkkkppp
- 扩频通信的扩频和解扩。信道是瑞利衰落信道,接收的误码率很小-Spread Spectrum Spread Spectrum Communication extend reconciliation. Channel is Rayleigh fading channel, receive a very small bit error rate
hvvCDMA
- 在MATLAB环境下实现了CDMA通信系统仿真,程序流程为:随机序列产生--WALSH码扩频--BPSK调制--加入(和不加入)高斯白噪声--BPSK解调--WALSH码解扩,对过程波形进行了存储,对加噪与不加噪情况下的解码结果进行了对比,并绘制出信噪比与误码率关系图。-In the MATLAB environment to achieve a CDMA communication system simulation, the program flow as follows: random s
zhijiexuliekuopin
- 直接序列扩频 实现扩频、解扩还有。MATLAB实现环境。其中解调用的是BPSK。-Spread Spectrum Direct Sequence Spread Spectrum, despreading there. MATLAB implementation environment. One solution is called BPSK.
621752841carrier
- dsss用Matlab实现直接序列扩频接收机,包括了扩频解扩,数字调制-dsss with the direct sequence spread spectrum receiver, Matlab, including the despreading of spread spectrum, digital modulation
1
- 直扩系统,适合学生毕业设计,结构简单,使用方便-DS system, suitable for graduate students to design, simple structure, easy to use
cdma
- 实现扩频系统。信源产生,扩频,基带成型后加噪声,解扩,低通。判决-Achieve spread spectrum system. Source production, spreading, baseband shaping, add noise, despreading, low-pass. Judgment
基于matlab的直接序列扩频通信系统仿真
- 学习扩频通信系统技术理论基础及直接序列DS扩频系统基本原理,并设计出直扩通信系统模型。此基带通信系统具体包括信源模块、、数据调制模块、扩频码产生模块、扩频模块、信道模块、解扩模块、解调模块,并在AWGN信道下对系统进行性能仿真研究。(Wireless communications is vulnerable to jamming attacks due to the shared use of wireless medium. A jammer can simply take advantage